Rice cultivar ‘UADA1701084’

ABSTRACT

A rice cultivar designated UADA1701084 is disclosed herein. The present invention provides seeds, plants, and plant parts derived from rice cultivar UADA1701084. Further, it provides methods for producing a rice plant by crossing UADA1701084 with itself or another rice variety. The invention also encompasses any rice seeds, plants, and plant parts produced by the methods disclosed herein, including those in which additional traits have been transferred into UADA1701084 through the introduction of a transgene or by breeding UADA1701084 with another rice cultivar.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinctive rice cultivar,designated UADA1701084.

Rice is an ancient agricultural crop and is today one of the principalfood crops of the world. There are two cultivated species of rice: Oryzasaliva L., the Asian rice, and O. glaberrima Steud., the African rice.O. saliva L. constitutes virtually all of the world's cultivated riceand is the species grown in the United States. Three major riceproducing regions exist in the United States: the Mississippi Delta(Arkansas, Mississippi, northeast Louisiana, southeast Missouri), theGulf Coast (southwest Louisiana, southeast Texas), and the CentralValleys of California.

Rice is a semi-aquatic crop that benefits from flooded soil conditionsduring part or all of the growing season. In the United States, rice isgrown on flooded soils to optimize grain yields. Heavy clay soils orsilt loam soils with hard pan layers about 30 cm below the surface arepreferred rice-producing soils because they minimize water losses fromsoil percolation. Rice production in the United States can be broadlycategorized as either dry-seeded or water-seeded. In the dry-seededsystem, rice is sown into a well-prepared seed bed with a grain drill orby broadcasting the seed and incorporating it with a disk or harrow.Moisture for seed germination is provided by irrigation or rainfall.Alternatively, the seed may be broadcast by airplane into a floodedfield, which is promptly drained following seeding. With the dry-seededsystem, when the plants have reached sufficient size (four- to five-leafstage), a shallow permanent flood of water, 5 to 16 cm deep, is appliedto the field for the remainder of the crop season.

In the water-seeded system, rice seed is soaked for 12 to 36 hours toinitiate germination, and the seed is broadcast by airplane into aflooded field. The seedlings emerge through a shallow flood, or thewater may be drained from the field for a short period of time toenhance seedling establishment. A shallow flood is maintained until therice approaches maturity. For both the dry-seeded and water-seededproduction systems, the fields are drained when the crop is mature, andthe rice is harvested 2 to 3 weeks later with large combines. In ricebreeding programs, breeders typically employ the production systemspredominant in their respective region. Thus, a drill-seeded breedingnursery is used by breeders in a region where rice is drill-seeded and awater-seeded nursery is used in regions where water-seeding isprominent.

Rice in the United States is classified into three primary market typesby grain size, shape, and chemical composition of the endosperm:long-grain, medium-grain and short-grain. Typical U.S. long-graincultivars cook dry and fluffy when steamed or boiled, whereas medium andshort-grain cultivars cook moist and sticky. Traditionally, in thesouthern states, long-grain cultivars have been grown and generallyreceive higher market prices.

Rice, Oryza saliva L., is an important and valuable field crop. Acontinuing goal of plant breeders is to produce stable, high yieldingrice cultivars that are agronomically sound. To accomplish this goal,rice plants with traits that result in superior cultivars must bedeveloped.

SUMMARY OF THE INVENTION

The present invention provides a novel rice cultivar designatedUADA1701084. The invention encompasses the seeds, plants, and plantparts of rice cultivar UADA1701084, as well as plants with essentiallyall of the physiological and morphological characteristics ofUADA1701084.

This invention also provides methods for producing a rice plant byplanting a plurality of seeds or by crossing rice UADA1701084 withitself or another rice line. Any plant breeding methods using ricecultivar UADA1701084 are part of this invention, including selfing,backcrosses, hybrid production, and crosses to populations. All plantsand seeds produced using rice cultivar UADA1701084 as a parent arewithin the scope of this invention, including gene-converted plants ofUADA1701084. Methods for introducing a gene into UADA1701084, eitherthrough traditional breeding or transformation, are provided herein.

In still another aspect, the present invention provides regenerablecells for use in tissue culture of rice plant UADA1701084, as well asrice plants regenerated from these tissue cultures.

Definitions

To provide a clear and consistent understanding of the specification andclaims, the following definitions are provided:

Apparent starch amylose content. The amount of starch in the endospermof milled rice that is amylose, provided in g/kg herein. Amylose contentvaries depending on the growth environment of the rice. It is animportant grain characteristic used to describe cooking behavior.

Backcrossing. A process in which a breeder repeatedly crosses hybridprogeny back to a parental line. For example, a first generation (F₁)hybrid may be crossed with one of the parental lines used to produce theF₁ hybrids.

Breeding. The genetic manipulation of living organisms.

Cell. As used herein, this term includes isolated cells, cells grown intissue culture, and cells that comprise a plant or plant part.

Cultivar. Used interchangeably with “variety”. Refers to plants that aredefined by the expression of the characteristics resulting from a givengenotype or combination of genotypes, distinguished from any other plantgrouping by the expression of at least one characteristic.

Days to 50% heading. The average number of days from emergence to theday when 50% of all panicles are exerted at least partially through theleaf sheath. A measure of maturity.

Embryo. The plant embryo is the part of a seed or bud that contains theearliest forms of the new plant's roots, stem and leaves.

Essentially all of the physiological and morphological characteristics.A plant having “essentially all the physiological and morphologicalcharacteristics” of the cultivar exhibits the characteristics of thecultivar with the exception of any characteristics derived from aconverted gene.

F #. Denotes a filial generation, wherein the # is the generationnumber. For example, F1 is the first filial generation.

Gene. Refers to a unit of inheritance corresponding to a distinctsequence of DNA or RNA nucleotides that form part of a chromosome. Agene may encode a polypeptide or a nucleic acid molecule that has afunction in the cell or organism.

Gene-converted. Describes a plant wherein essentially all of the desiredmorphological and physiological characteristics of a parental varietyare maintained with the exception of a single trait that was transferredinto the variety via backcrossing or genetic engineering.

Genotype. Refers to the genetic constitution of a cell or organism.

Grain yield. Measured in pounds per acre at 12.0% moisture content. Thegrain yield of rice is determined by the number of panicles per unitarea, the number of fertile florets per panicle, and the grain weightper floret.

Haploid. A cell or organism having a single set of unpaired chromosomes.

Head rice. Kernels of milled rice in which greater than ¾ of the kernelis unbroken.

Herbicide resistant. Describes a plant that is tolerant or resistant toan herbicide at a level that would normally kill or inhibit the growthof a normal or wild-type rice plant.

Hybrid. Refers to the offspring or progeny of genetically dissimilarplant parents or stock produced as the result of controlledcross-pollination as opposed to a non-hybrid seed produced as the resultof natural pollination.

Kemal length (L). Length of a rice grain, measured in millimeters.

Kemal width (W). Width of a rice grain, measured in millimeters.

Length/width (L/W) ratio. Determined by dividing the average length (L)by the average width (W).

Lodging. The percentage of plant stems that are leaning or have fallento the ground before harvest. Lodging is determined by visual scoring,in which crops are rated from 0% (all plants standing) to 100% (allplant in plot lying flat on the soil surface). Lodged plants aredifficult to harvest and reduce yield and grain quality. Lodgingresistance is also called “straw strength”.

Milling yield. The total amount of milled rice (whole and brokenkernels) recovered after milling (i.e., removal of hulls, bran, andgerm). In contrast, head rice yield is the total amount of whole kernelsrecovered after milling. Both values are expressed as a weightpercentage of the original paddy or rough rice sample that was milled.For example, for a sample of 100 grams of rough rice, a milling yield of65/70 indicates that 65 grams of head rice and 70 grams of total milledrice were produced.

Pedigree. Refers to the lineage or genealogical descent of a plant.

Plant. As used herein, the term “plant” includes plant cells, plantprotoplasts, and plant cell tissue cultures from which rice plants canbe regenerated; plant calli, plant clumps and plant cells that areintact in plants; and parts of plants, such as embryos, pollen, ovules,flowers, glumes, panicles, leaves, stems, roots, root tips, anthers, andpistils.

Plant height. Measured in centimeters from the soil surface to the tipof the extended panicle at harvest.

Plant parts. Includes, without limitation, protoplasts, leaves, stems,roots, root tips, anthers, pistils, seed, grain, embryo, pollen, ovules,cotyledon, hypocotyl, pod, flower, shoot, tissue, petiole, cells, andmeristematic cells.

Progeny. Includes an Ft rice plant produced from the cross of two riceplants, as well as plants produced from subsequent generational crosses(e.g., F₂, F₃, F₄, F₅, F₆, F₇, F₈, F₉, and F₁₀) with the recurrentparental line.

Regeneration. Refers to the development of a plant from tissue culture.

Seeds. Includes seeds and plant propagules of all kinds including, butnot limited to, true seeds, seed pieces, suckers, corms, bulbs, fruit,tubers, grains, cuttings, cut shoots and the like. However, in preferredembodiments, it refers to true seeds.

Trait. Refers to an observable and/or measurable characteristic of anorganism. For example, the present invention describes plants that havea trait that make them resistant to fluazifop herbicides.

Transgenic. Describes an organism or cell that contains genetic materialthat has been artificially introduced.

Wild-type. When made in reference to a gene, “wild-type” refers to afunctional gene common throughout a plant population and, thus,arbitrarily designated the “normal” or “wild-type” form of the gene.

DETAILED DESCRIPTION OF THE INVENTION

The present invention provides a novel rice cultivar designatedUADA1701084. The invention encompasses both the seeds of this cultivarand plants grown from these seeds. The invention further encompasses anyrice plant having essentially all of the physiological and morphologicalcharacteristics rice cultivar UADA1701084.

As used herein, the term plant includes plant cells, plant protoplasts,plant cell tissue cultures from which rice plants can be regenerated,plant calli, plant clumps and plant cells that are intact in plants orparts of plants, such as embryos, pollen, ovules, flowers, glumes,panicles, leaves, stems, roots, root tips, anthers, pistils, and thelike.

Development and Characterization of Rice Cultivar UADA1701084

Rice cultivar UADA1701084 (Poaceae Oryzea Oryza sativa L.), is a veryhigh yielding, short season, long-grain rice cultivar. UADA1701084originated from the cross ‘RoyJ’/5/‘Katy’/‘Newbonnet’//‘Adair’/3/‘Wells’/4/Adair//Katy/Newbonnet/3/‘LaGrue’(cross no. 20082431), made in Stuttgart, Ark., in 2008. Roy J(Moldenhauer et al., 2010) is a long-grain lodging resistant highyielding rice. UADA1701084 was bred using hybridization, a combinationof modified pedigree and bulk breeding methods, and is adapted to theSouthern U.S. rice growing region. The experimental designation forearly evaluation of UADA1701084 was STG040L-09-042, starting with a bulkof F8 seed from the 2014 panicle row L-09-042. UADA1701084 was tested inthe Arkansas Rice Performance Trials (ARPT) and the Cooperative UniformRegional Rice Nursery (URRN) during 2017-2019 as entry UADA1701084.

UADA1701084 maturity is between ‘Diamond’ and Roy J. UADA1701084 hasstraw strength similar to Diamond. On a relative straw strength scale(0=very strong straw, 9=very weak straw) UADA1701084, Diamond, ‘LaKast’,and Roy J rated 3, 3, 3, and 1, respectively. UADA1701084 is 104 cm inplant height with an average canopy height of 35 inches which is similarto Diamond and LaKast. UADA1701084 has a lodging resistance similar toDiamond better than that of Wells. The nitrogen fertilizer requirementsof UADA1701084 are 135 lbs/a.

Rough rice grain yields of UADA1701084 have consistently ranked as oneof the highest in the Arkansas Rice Performance Trials (ARPT). In 14ARPT tests (2017-2019), UADA1701084, Diamond, LaKast, Roy J, and RTXL753 averaged yields of 206, 205, 189, 193 and 230 bushels/acre,respectively. Data from the URRN conducted at Arkansas during 2017-2019,showed that UADA1701084 average grain yield of 231 bushels/acre comparedfavorably with those of Diamond, LaKast, and Roy J, at 239, 208, and 199bushels/acre, respectively. Milling yields (mg g⁻¹ whole kernel:mg g⁻¹total milled rice) at 120 mg g⁻¹ moisture from the ARPT, 2017-2018,averaged 550:690, 540:690, 550:690, 570:700 and 490:710, forUADA1701084, Diamond, LaKast, Roy J, and RT XL753, respectively. Millingyields for the URRN in Arkansas during the same period of time,2017-2018, averaged 610:690, 600:690, 600:700 and 620:710, forUADA1701084, Diamond, LaKast, and Roy J, respectively.

UADA1701084 is moderately susceptible to common rice blast (Pyriculariagrisea (Cooke) Sacc) races IB-1, IB-17, IB-49, IC-17, IE-1, and IE-1Kwith summary ratings in greenhouse tests of 6, 5, 6, 4, 3 and 4,respectively, using the standard disease scale of 0=immune, 9=maximumdisease susceptibility. UADA1701084 is rated MS to sheath blight(Rhizoctonia solani Kühn) which compares with Diamond (S), Wells (S),Roy J (MS), and LaKast (MS), using the standard disease R=resistant,MR=moderately resistant, MS=moderately susceptible, S=susceptible andVS=very susceptible to disease. UADA1701084 is rated an S to false smut(Ustilaginoidea virens (Cooke) Takah). UADA1701084 is rated S tobacterial panicle blight compared to Diamond (MS) LaKast (MS) and Roy J(MS).

Plants of UADA1701084 have erect culms, dark green erect leaves, andglabrous lemma, palea, and leaf blades. The lemma and palea are strawcolored with red-purple apiculi, many of which fade to straw atmaturity. Milled kernels of UADA1701084 averaged 6.86 mm compared toDiamond, LaKast, Roy J, and ‘CL151’ at 7.17, 7.56, 7.31, and 6.87 mm,respectively. Individual milled kernel weights of UADA1701084, Diamond,LaKast, Roy J and CL151 averaged 21.8, 21.84, 22.3, 21.1, and 20.5mg/kernel, respectively, in the ARPT 2017-2018.

The endosperm of UADA1701084 is nonglutinous, nonaromatic, and coveredby a light brown pericarp. Rice quality parameters indicate thatUADA1701084 has typical southern U.S. long-grain rice cooking qualitycharacteristics as described by Webb et al. 1985. Data from the RicelandFoods Inc. Quality Laboratory indicate that UADA1701084 has an averageapparent starch amylose content of 23.5 g kg⁻¹ and an intermediategelatinization temperature 68.8° C.

The foundation seed field of UADA1701084 was rogued several timesthroughout the season. The variants that may be found in the releaseinclude any combination of the following: taller, shorter, earlier,later, glabrous or pubescent plants as well as intermediate orlong-grains and grains with extremely long awns. Other atypical plantsmay still be encountered in the cultivar. The total variants and/oroff-types numbered less than 1 per 5000 plants.

The above-mentioned characteristics of rice cultivar UADA1701084 arebased primarily on data collected in Stuttgart, Ark. and are summarizedin Table 1. The results of the rice performance trials (ARPT 2017-2019and URRN 2017-2019) are detailed in the Table 2-13. Tables 14-17 showgrain quality and yield data, Tables 18-20 show DD50 program data, Table21 shows pertinent agronomic information, Table 22 shows nitrogen trialdata, and Tables 23-24 show disease evaluation data.

TABLE 1 Cultivar description information Plant: Grain type: Long Days tomaturity (Seeding to 50% heading): 90 (range 82-99 days) Plant height:100 cm Plant color (at booting): Dark green Culm: Angle (degrees fromperpendicular after flowering): Erect (less than 30°) Flag leaf (afterheading): Pubescence: Glabrous Leaf angle (after heading): Erect Bladecolor (at heading): Dark green Panicle: Length: 22.9 cm Type:Intermediate Exertion (near maturity): Moderately well Axis: DroopyShattering (at maturity): Low (1-5%) Grain (spikelet): Awns (after fullheading): Tip awns at high fertility or short/long and partly awnedApiculus color: Red Stigma color: White Lemma and palea color (atmaturity): Straw Lemma and palea pubescence: Glabrous Grain (seed): Seedcoat color: Light brown Scent: Nonscented Shape class (length/widthratio): Paddy: Long (3.4:1 and more) Brown: Long (3.1:1 and more)Milled: Long (3.0:1 and more) Size: 21.8 g/1000 seeds milled riceDisease resistance: Rice blast (Pyricularia grisea (Cooke) Sacc.):Moderately susceptible Sheath blight (Rhizoctonia solani Kuhn):Moderately susceptible False smut (Ustilaginoidea virens (Cooke)Takah.): Susceptible Bacterial panicle blight (Burkholderia glumae andB. gladioli): Susceptible Straight head: Moderately resistant

TABLE 2 UADA1701084 data summary from 2017 ARPT. (Stuttgart, RREC; Colt,PTES; Keiser, NEREC; Clay County & Desha County) YIELD HEIGHT^(a)HEIGHT^(b) MATURITY MILLING VARIETY (BU/AC) (IN.) (IN.) (50% HD) HR:TOTRU1701081 184 41 37 93 51:70 UADA1701084 210 39 37 93 57:69 Jewel 192 4138 91 59:71 Diamond 206 42 38 91 56:69 LaKast 188 44 39 89 56:70 Roy J196 42 40 94 60:70 RT XP753 220 42 38 87 49:70 ^(a)Plant height measuredfrom to the tip of the panicle ^(b)Plant height is the canopy height notto tip of panicle

TABLE 3 UADA1701084 data summary from 2018 ARPT (Stuttgart, RREC; Colt,PTES; Keiser, NEREC; Clay County, & Desha County) YIELD HEIGHT^(a)MATURITY TEST WEIGHT MILLING VARIETY (BU/AC) (IN.) (50% HD) LBS/BUHR:TOT RU1701081 183 36 85 39.6 49:70 UADA1701084 201 35 87 40.0 54:69Jewel 186 37 85 39.9 57:70 Diamond 206 36 83 39.9 52:69 LaKast 187 36 8240.0 53:67 Roy J 189 38 90 39.4 54:69 RTXP753 229 36 80 40.4 49:71^(a)Plant height is the canopy height not to tip of panicle

TABLE 4 UADA1701084 data summary from 2019 ARPT (Stuttgart, RREC; Colt,PTES; Keiser, NEREC; Clay County and Chicot County) YIELD HEIGHTMATURITY TEST WT MILLING VARIETY (BU/AC) (IN.)^(a) (50% HD) (lbs/BU)HR:TOT* RU1701081 183 35 86 40.5 54:71 UADA1701084 206 34 86 40.0 56:70Jewel 182 36 85 40.0 61:71 Diamond 204 35 85 40.5 58:70 LaKast 193 34 8241.1 58:70 RT XP753 242 36 81 40.9 56:71 ^(a)Plant height is the canopyheight not to tip of panicle

TABLE 5 UADA1701084 data summary from 2017-2019 ARPT YIELD HEIGHTMATURITY TEST WT MILLING VARIETY (BU/AC) (IN.)^(a) (50% HD) (lbs/BU)^(c)HR:TOT^(d) RU1701081 183 36 88 40.1 51:70 UADA1701084 206 35 89 40.055:69 Jewel 187 37 87 40.0 59:71 Diamond 205 36 86 40.2 56:69 LaKast 18936 84 40.6 56:69 Roy J^(b) 193 39 92 — 57:70 RT XP753 230 37 83 40.651:71 ^(a)Plant height is the canopy height not to tip of panicle^(b)2107 & 2018 data ^(c)test weight from 2018 & 2019 ^(d)2017 & 2018data

TABLE 6 2017 ARPT mean by location (Stuttgart, RREC; Colt, PTES; Keiser,NEREC; Clay County and Desha County) 2017 GRAIN YIELD (BU/AC) HEADRICE(%):TOTAL RICE(%) VARIETY RREC NEREC PTES CLAY CHICOT AVG RREC NERECPTES CLAY CHICOT AVG RU1701081 183 192 163 197 184 184 61:72 57:70 47:6953:72 37:69 51:70 UADA1701084 201 205 201 229 217 210 59:70 61:68 54:6761:70 50:68 57:69 Jewel 203 192 169 205 190 192 61:73 60:70 61:71 60:7150:70 59:71 Diamond 214 204 177 227 208 206 60:68 61:71 60:69 61:7143:68 56:69 LaKast 194 179 172 201 197 188 57:69 60:72 58:70 61:71 44:7056:70 Roy J 197 205 184 209 186 196 61:69 65:72 60:69 65:72 50:70 60:70RT XP 753 231 222 201 230 214 220 59:71 57:70 51:68 48:70 32:69 49:70

TABLE 7 2018 ARPT mean by location (Stuttgart, RREC; Colt, PTES; Keiser,NEREC; Clay County and Chicot County) 2018 GRAIN YIELD (BU/AC) HEADRICE(%):TOTAL RICE(%) VARIETY RREC NEREC PTES CLAY CHICOT AVG RREC NERECPTES CLAY CHICOT AVG RU1701081 182 154 186 199 192 183 60:70 38:69 48:7042:72 59:70 49:70 UADA1701084 204 198 204 196 201 201 60:68 50:68 52:6950:71 58:69 54:69 Jewel 183 157 183 204 202 186 58:69 53:68 57:70 59:7259:71 57:70 Diamond 204 189 195 228 213 206 57:68 50:68 51:69 48:7257:70 52:69 LaKast 191 161 190 213 181 187 58:70 42:54 52:70 54:72 58:7153:67 RoyJ 193 178 190 204 178 189 52:66 55:69 54:70 50:72 58:71 54:69RT XP 753 252 165 232 261 234 229 62:71 36:69 51:70 37:73 60:72 49:71

TABLE 8 2019 ARPT mean by location (Stuttgart, RREC; Colt, PTES; Keiser,NEREC; and Clay County) GRAIN YIELD (BU/AC) HEAD RICE(%):TOTAL RICE(%)VARIETY RREC NEREC PTES CLAY AVG RREC NEREC PTES CLAY AVG RU1701081 215179 148 191 183 56:70 64:71 35:70 62:72 54:71 UADA1701084 225 197 179222 206 56:68 65:70 40:69 64:71 56:70 Jewel 211 171 156 189 182 57:6960:68 61:72 64:72 61:71 Diamond 219 193 179 226 204 55:68 62:69 52:7063:72 58:70 LaKast 213 202 161 203 195 57:70 60:69 49:70 64:72 58:70 RTXP753 265 245 201 256 242 60:71 62:72 40-:70 63:73 56:71

TABLE 9 2017-2019 ARPT mean by location (Stuttgart, RREC; Colt, PTES;Keiser, NEREC; Clay County and Desha/Chicot County) GRAIN YIELD (BU/AC)HEAD RICE(%):TOTAL RICE(%)^(a) VARIETY RREC NEREC PTES CLAY CHICOT AVGRREC NEREC PTES CLAY CHICOT AVG RU1701081 193 175 166 196 188 183 61:7148:70 48:70 48:72 48:70 51:71 UADA1701084 210 200 195 216 209 206 60:6956:68 53:68 56:71 54:69 56:69 Jewel 199 173 169 199 196 187 60:71 57:6959:71 60:72 55:71 58:71 Diamond 212 195 184 227 211 205 59:68 56:7056:69 55:72 50:69 55:70 LaKast 199 181 174 206 189 190 58:70 51:63 55:7058:72 51:71 55:69 Roy J^(a) 195 192 187 206 182 192 57:68 60:71 57:7058:72 54:71 57:70 ^(a)2017-2018 data

TABLE 10 2017 Arkansas URN data YIELD HEIGHT MATURITY MILLING VARIETY(BU/AC) (IN.) (50% HD) HR:TOT RU1701081 219 43 84 59:69 UADA1701084 23842 83 60:69 Jewel 224 46 82 60:69 Diamond 245 43 82 58:68 LaKast 201 4680 56:69 Roy J 211 46 87 60:69

TABLE 11 2018 Arkansas URN data YIELD HEIGHT MATURITY MILLING VARIETY(BU/AC) (IN.) (50% HD) HR:TOT RU1701081 230 42 81 59:71 UADA1701084 22041 83 62:69 Jewel 218 45 79 59:69 Diamond 219 45 80 62:70 LaKast 215 4776 63:71 Roy J 187 45 85 64:72

TABLE 12 2019 Arkansas URN data YIELD HEIGHT MATURITY MILLING VARIETY(BU/AC) (IN.) (50% HD) HR:TOT RU1701081 228 45 91 65:73 UADA1701084 23441 93 59:73 Jewel 245 43 90 63:72 Diamond 253 44 89 59:72 Roy J 202 4595 56:72

TABLE 13 2017-2019 Arkansas URN data YIELD HEIGHT MATURITY MILLINGVARIETY^(a) (BU/AC) (IN.) (50% HD) HR:TOT^(b) RU1701081 226 43 85 59:70UADA1701084 231 41 86 61:69 Jewel 229 45 84 60:69 Diamond 239 44 8460:69 LaKast 208 47 78 60:70 Roy J 199 46 86 62:71 ^(a)LaKast and Roy Jare only from 2017 & 2018 not included in 2019 test. Maturity may not becomparable for the LaKast and Roy J Milling from 2017 and 2018 for allentries

TABLE 14 2017-2018 quality data obtained from the Riceland Laboratory.Milling Data Satake Head Total Hull Bran Milling Moisture Chalk LengthWidth Thickness L:W Cultivar Yield Yield Yield Yield Whiteness Degree(%) (%) (mm) (mm) (mm) Ratio Diamond 64.7 69.9 17.7 12.4 41.0 96.1 9.11.41 7.17 2.12 1.74 3.4 LaKast 64.8 70.2 17.7 12.0 43.4 108.3 9.1 1.277.56 2.11 1.73 3.6 Roy J 64.6 69.9 17.7 12.4 40.7 96.4 9.4 1.09 7.312.08 1.74 3.5 Jewel 62.8 69.9 17.1 13.0 41.9 99.6 9.3 1.29 7.13 2.161.67 3.3 UADA1701084 64.9 69.8 18.2 12.1 39.0 86.4 9.4 2.53 6.86 2.221.77 3.1 RU1701087 64.3 69.2 17.3 13.5 40.8 96.6 9.2 1.41 7.07 2.10 1.673.4 CL151 64.7 69.6 17.9 12.5 38.8 91.5 8.9 2.51 6.87 2.22 1.69 3.1 *Thedata are averages of the ARPT locations is a given year (2017 and 2018five locations: Rice Research and Extension Center (RREC), Stuttgart,AR; Pine Tree Experiment Station (PTES) Colt, AR; Northeast Research andExtension Center, Keiser (NEREC), AR; Producer Field, Clay County(CLCO), AR; Producer Field, and Chicot County (CCO), AR

TABLE 15 2017-2018 kernel characteristics. Weight Gel Temp Amylose RVA(rvu) Cultivar (g) (° C.) (%) Peak Trough Breakdown Final SetbackDiamond 21.4 69.3 23.7 263 134 129 271 8 LaKast 22.3 68.7 23.9 270 148121 288 18 Roy J 21.1 68.8 24.2 259 132 126 268 9 RU1701081 21.0 69.323.1 256 139 116 275 19 UADA1701084 21.8 68.8 23.5 250 129 121 264 13Jewel 19.9 70.7 25.6 192 101 91 220 27 CL151 20.5 70.4 23.3 264 141 123279 16 *The data are averages of the ARPT locations is a given year(2017 and 2018 five locations: Rice Research and Extension Center(RREC), Stuttgart, AR; Pine Tree Experiment Station (PTES) Colt, AR;Northeast Research and Extension Center, Keiser (NEREC), AR; ProducerField, Clay County (CLCO), AR; Producer Field, and Chicot County (CCO),AR

TABLE 16 2018 Producer Rice Evaluation Program results: grain yieldbushels/acre AVG Grain St. Grain Cultivar Type Craighead CrittendenLonoke Perry Poinsett Prairie Randolph Francis White Woodruff YieldDiamond L 197 245 210 220 167 185 198 190 207 199 202 LaKast L 219 230192 199 155 208 201 176 196 214 199 Roy J L 206 260 209 212 146 183 183179 205 191 197 ‘Titan’ M 228 230 194 223 170 216 203 184 237 228 211‘Jupiter‘ M 181 238 193 232 155 183 193 176 228 222 200 RT XP753 L 256280 258 262 191 218 219 210 239 270 240 UADA1701084 L 203 216 213 174161 188 194 177 200 204 193 Mean 213 243 210 217 164 197 199 185 216 218206

TABLE 17 2018 Producer Rice Evaluation Program results: milling yieldsGrain St. AVG Cultivar Type Craighead Crittenden Lonoke Perry PoinsettPrairie Randolph Francis White Woodruff Milling Diamond L 52-69 59-7159-70 48-68 47-69 57-70 38-72 51-70 61-72 57-68 53-70 LaKast L 53-7063-73 59-72 49-69 47-70 58-71 43-71 57-71 63-72 59-71 55-71 Roy J L55-71 64-73 57-71 52-70 47-70 56-70 41-71 56-71 62-73 55-69 55-71 TitanM 62-70 59-71 60-70 36-67 38-69 52-70 22-71 47-70 66-72 63-71 50-70Jupiter M 63-69 68-72 66-70 45-68 50-69 38-69 34-70 38-69 65-70 59-6953-69 RT XP753 L 56-71 62-74 61-73 48-71 40-71 58-72 31-72 47-70 61-7361-72 52-72 UADA1701084 L 57-70 63-72 59-69 45-68 43-70 58-70 31-7054-71 60-70 59-69 53-70 Mean 56-70 62-72 60-70 48-69 45-70 56-70 36-7151-70 62-72 60-70 54-70

TABLE 18 DD50 milling yield 2018 % HR-TR Cultivar 22-Mar 5-Apr 19-Apr2-May 15-May 5-Jun Average UADA1701084 54-67 53-66 54-67 53-66 53-6765-71 55-68 Diamond 54-68 52-68 52-68 53-67 55-67 61-70 55-68 Jupiter58-67 60-66 60-66 59-66 56-65 53-67 58-66 LaKast 54-68 53-67 53-67 52-6851-67 63-71 54-68 RoyJ 55-69 52-67 54-68 52-67 55-67 63-71 55-68 RTXP753 56-69 56-68 54-68 55-69 51-67 63-71 56-69 Titan 57-68 59-66 59-6760-67 51-66 58-69 57-67 Wells 55-69 52-68 48-67 49-68 51-69 63-72 53-69Mean 56-68 56-67 55-67 55-67 53-67 61-70 56-68 *The DD50 program wasdeveloped in the 1970's to help rice farmers accurately time mid-seasonnitrogen applications. The DD50 is a modification of the growingdegree-day concept, which uses temperature data to predict ricedevelopment.

TABLE 19 2018 DD50 Summary Tables Seeding 21-Mar 83 5-Apr 19-Apr 2-May15-May 5-Jun Average Emergence 23-Apr 103 2-May 4-May 10-May 21-May13-Jun Flood 1-Jun 126 1-Jun 7-Jun 7-Jun 13-Jun 3-Jul DD50 DD50 DD50DD50 DD50 DD50 DD50 Timing DAYS UNITS DAYS UNITS DAYS UNITS DAYS UNITSDAYS UNITS DAYS UNITS DAYS UNITS Days from 33 229 27 227 15 199 8 199 6174 8 244 16 212 seeding to emergence Days from 39 963 30 848 34 957 28812 23 673 20 621 29 812 emergence to flooding Days from 72 1421 57 107549 1156 36 1011 29 847 28 865 45 1062 seeding to flooding

TABLE 20 DD50 information for UADA1701084 - 2018 50% Heading 22 Mar.2018 5 Apr. 2018 19 Apr. 2018 2 May 2018 15 May 2018 5 Jun. 2018 AverageDD50 DD50 DD50 DD50 DD50 DD50 DD50 Cultivar DAYS UNITS DAYS UNITS DAYSUNITS DAYS UNITS DAYS UNITS DAYS UNITS DAYS UNITS AREX7-1084 87 2421 812405 84 2496 80 2404 80 2392 76 2266 81 2397 Diamond 85 2374 75 2222 692093 73 2199 69 2052 85 2374 76 2219 Jupiter 79 2336 75 2262 73 2202 752243 83 2444 78 2308 77 2299 LaKast 78 2308 80 2387 78 2344 75 2236 782286 83 2345 79 2318 RoyJ 81 2418 81 2432 77 2325 76 2276 79 2302 862453 80 2368 RT XP753 76 2267 75 2239 74 2238 71 2116 82 2316 78 2288 762244 Titan 75 2235 71 2129 76 2284 69 2068 81 2292 79 2296 75 2217 Wells80 2378 77 2330 79 2361 75 2223 83 2339 76 2230 78 2310 Mean 82 2349 782326 79 2356 76 2271 78 2304 77 2263 78 2311 C.V 0.59 0.67 1.65 2.102.80 2.85 3.09 2.90 3.03 4.98 3.55 3.86 5.89 4.75 LSD 0.7 22.5 1.8 67.83.2 96.9 3.4 97.4 3.3 162.4 3.7 119.4 2.6 62.4

TABLE 21 Pertinent agronomic information for the Northeast Research andExtension Center (NEREC), Pine Tree Research Station (PTRS), and theRice Research and Extension Center (RREC) during 2015. PRACTICES NERECPTRS** RREC Pre-plant Fertilizer 0-60-90 + 10 lbs Zn as ZnSO4 PlantingDates 5/4  6/5  5/1 Herbicide Spray Dates and 5/6 40 oz/acre 6/5 1.0pt/acre 5/1 20 oz/acre Spray Procedures Facet L + 1.3 pt/acre Command +0.75 oz/acre Obey Command + 0.75 oz/acre Permit Plus Permit Plus + 32oz/acre RoundUp Flush Dates Emergence Dates 5/20 6/11  5/10 HerbicideSpray Dates and 6/11 4 qt/acre 6/16 3 qt/acre 6/1 2 qt Spray ProceduresStam + 1 pt/acre Riceshot + 32 Prowl + 0.75 oz/acre Grandstand oz/acreFacet L Permit Plus Herbicide Spray Dates and 6/23 32 oz/acre SprayProcedures Facet L + 1 pt/acre Bolero Herbicide Spray Dates and SprayProcedures Preflood N Dates 6/18 6/24 6/3 Flood Dates 6/19 6/25 6/4Drain Dates 9/9  10/1   8/28 Harvest Dates 9/23 10/14  9/2 **Zinc EDTAapplied (7/10)

TABLE 22 Influence of nitrogen (N) fertilizer rate on the grain yield ofUADA1701084 rice at three locations during 2019. Grain Yield NFertilizer Rate NEREC^(a) PTRS RREC (lbs N/A) (bushels/acre) 0 85 72 12560 — 128 170 90 172 149 203 120 167 159 219 150 179 164 235 180 191 174234 210 188 — — ^(a)NEREC = Northeast Research and Extension Center,Keiser, AR; PTRS = Pine Tree Research Station, Colt, AR; RREC = RiceResearch and Extension Center, Stuttgart, AR. ^(b)LSD = leastsignificant difference, C. V. = coefficient of variation.Disease Evaluations of Rice Cultivar UADA1701084

Varietal resistance is the most efficient and reliable means ofcontrolling rice diseases. Conservation and improvement of diseaseresistance is a continuous endeavor basic to varietal development.Incorporation of existing and new resistance sources is a complexprocess limited by several variables. The rice disease research programroutinely evaluates breeding program entries to provide disease datarequired for superior variety development. Our objectives are toincrease varietal disease resistance and to define disease liabilitiesof new varieties released for rice production in Arkansas.

Rice diseases are mostly rated visually on a 0-9 scale to estimatedegree of severity. Numerical data is often converted to this scale. Arating of zero indicates complete disease immunity. A rating of one tothree indicates resistance where little loss occurs and in the case ofrice blast pathogen growth is restricted considerably. Conversely, anine rating indicates maximum disease susceptibility, which typicallyresults in near complete plant death and/or yield loss. Depending uponthe disease in question, a disease rating of four to six is usuallyindicative of acceptable disease resistance under conditions slightlyfavoring the pathogen. Numerical ratings are sometimes converted toletter symbols where 0-3=R (resistant), 3-4=MR (moderately resistant),5-6=MS (moderately susceptible) 7=S (susceptible) and 8-9 VS (verysusceptible). Exceptions to established ratings do occur unexpectedly asdisease situations change.

These data come from several sources. Advanced and promising breedinglines are normally evaluated by researchers in other states. It is notunusual for ratings to vary with location and year due to environmentaldifferences and research procedures. Ratings within a sourcetraditionally have been consistent.

Greenhouse blast tests are the primary means of screening large numberof entries for varietal reaction to the many blast races occurring inthe production areas. Although results are quite variable and testingconditions tend to overwhelm any field resistance present in the entry,this test provides an accurate definition of the fungus-varietygenetics. Blast field nurseries, utilizing both natural and lab producedinoculum, are established in an effort to better define blastsusceptibility under field conditions.

Field nurseries are established and artificially inoculated to provide auniform disease pressure for evaluations under field conditions. Growernurseries are established and operate in an effort to evaluate diseasereactions in grower fields under current production practices. Over timethese nurseries document variety performance under adverse diseaseconditions in Arkansas production fields.

Below, Tables 23-24 show disease evaluation data.

TABLE 23 Summary of available leaf blast rating data from UADA1701084plants inoculated with the indicated race using standard greenhousetechniques. Year IB-1 IB-17 IB-49 IC-17 IE-1K IE-1 2019 6 5 6 4 4 N/A2017 5, 4 5 3, 4, 5 4, 5 0, 0, 0, 4 3, 0

TABLE 24 Rice variety reactions¹ to diseases (2018-19). Bacterial NarrowBlack Sheath Panicle Brown Stem Kernel False Sheath Cultivar BlightBlast Straighthead Blight Leaf Spot Rot Smut Smut Lodging RotUADA1701084 MS S MR S MS S Diamond S S MS S S VS MS LaKast MS S MS MS MSS S S MS MS Roy J MS S S S R S VS S MR MS RiceTec XL753 MS R MS MR R MSS MS S RiceTec XP760 MS MR MR R MS VS S Wells S S S S S VS S S MS MS¹Reaction: R = Resistant; MR = Moderately Resistant; MS = ModeratelySusceptible; S = Susceptible; VS = Very Susceptible. Reactions weredetermined based on historical and recent observations from test plotsand in grower fields across Arkansas. In general, these reactions wouldbe expected under conditions that favor severe disease developmentincluding excessive nitrogen rates (most diseases) or low flood depth(blast).Methods

This present invention provides methods for producing rice plants. Insome embodiments, these methods involve crossing a first parent riceplant with a second parent rice plant wherein either the first or secondparent rice plant is a rice plant of the line UADA1701084. Further, bothfirst and second parent rice plants can come from the rice cultivarUADA1701084. Still further, this invention also is directed to methodsfor producing a rice cultivar UADA1701084-derived rice plant by crossingrice cultivar UADA1701084 with a second rice plant and growing theprogeny seed, and repeating the crossing and growing steps with the ricecultivar UADA1701084-derived plant from 0 to 7 times. Thus, any suchmethods using the rice cultivar UADA1701084 are part of this invention:selfing, backcrosses, hybrid production, crosses to populations, and thelike. All plants produced using rice cultivar UADA1701084 as a parentare within the scope of this invention, including plants derived fromrice cultivar UADA1701084. Advantageously, the rice cultivar is used incrosses with other, different, rice cultivars to produce firstgeneration (F₁) rice seeds and plants with superior characteristics.

In some embodiments, a UADA1701084 progeny plant is selected that hasmolecular markers, morphological characteristics, and/or physiologicalcharacteristics in common with UADA1701084 (e.g., those listed in Table1). Techniques such as RFLP-enhanced selection, genetic marker enhancedselection (e.g., SSR markers), and the making of double haploids may beutilized to identify progeny that share particular traits withUADA1701084.

Further, this invention provides methods for introducing a desired traitinto rice cultivar UADA1701084. This may be accomplished usingtraditional breeding methods, such as backcrossing (see Breeding Methodssection below). Alternatively, the desired trait may be introduced bytransforming the rice cultivar with a transgene (see TransformationMethods section below). The transgenic cultivar produced by thesemethods may be crossed with another cultivar to produce a new transgeniccultivar. Alternatively, the transgene incorporated by these methodscould be moved into another cultivar using traditional backcrossingtechniques.

Optionally, any of the disclosed methods may further comprise additionalsteps involving producing rice seed from the resulting rice plantsand/or planting the rice seed.

The present invention encompasses all plants, or parts thereof, producedby the methods described herein, as well as the seeds produced by theseplants. Further, any plants derived from rice cultivar UADA1701084 orproduced from a cross using cultivar UADA1701084 are provided. Thisincludes genetic variants, created either through traditional breedingmethods or through transformation, as well as plants produced in amale-sterile form. Notably, this includes gene-converted plantsdeveloped by backcrossing. Any of the seeds, plants, or plant partsprovided may be utilized for human food, livestock feed, and as a rawmaterial in industry.

The present invention also encompasses progeny of rice cultivarUADA1701084 comprising a combination of at least two UADA1701084 traitsselected from those listed in the Tables and Detailed Description of theInvention, wherein the progeny rice plant is not significantly differentfrom UADA1701084 for said traits, as determined at the 5% significancelevel when grown in the same environment. One of skill in the art knowshow to compare a trait between two plant varieties to determine if thereis a significant difference between them (Fehr and Walt, Principles ofCultivar Development, pp. 261-286 (1987)). Molecular markers or meantrait values may be used to identify a plant as progeny of UADA1701084.Alternatively, progeny may be identified through their filialrelationship with rice cultivar UADA1701084 (e.g., as being within acertain number of breeding crosses of rice cultivar UADA1701084). Forexample, progeny produced by the methods described herein may be within1, 2, 3, 4, or 5 breeding crosses of rice cultivar UADA1701084.

Tissue Culture

The present invention provides tissue cultures of regenerable cells orprotoplasts produced from rice cultivar UADA1701084. As is well known inthe art, tissue culture of rice can be used for the in vitroregeneration of a rice plant. Thus, such cells and protoplasts may beused to produce plants having the physiological and morphologicalcharacteristics of rice variety UADA1701084. The rice plants regeneratedby these methods are also encompassed by the present invention.

As used herein, the term “tissue culture” describes a compositioncomprising isolated cells or a collection of such cells organized intoparts of a plant. Exemplary tissues for culture include protoplasts,calli, plant clumps, and plant cells that can be grown in culture, orparts of plants, such as embryos, pollen, flowers, seeds, pods, leaves,stems, roots, root tips, and anthers. Culture of various rice tissuesand regeneration of plants therefrom is well known in the art.

Breeding Methods

The goal of rice breeding is to develop new, superior rice cultivars andhybrids. A superior cultivar is produced when a new combination ofdesirable traits is formed within a single plant variety. Desirabletraits may include higher seed yield, resistance to diseases andinsects, better stems and roots, tolerance to low or high temperatures,herbicide resistance, and better agronomic characteristics or grainquality.

The breeding methods used with the present invention may involve asingle-seed descent procedure, in which one seed per plant is harvestedand used to plant the next generation. Alternatively, the methods mayutilize a multiple-seed procedure, in which one or more seeds harvestedfrom each plant in a population is threshed together to form a bulkwhich is used to plant the next generation.

Use of rice cultivar UADA1701084 in any plant breeding method isencompassed by the present invention. The choice of a breeding orselection method will depend on several factors, including the mode ofplant reproduction, the heritability of the trait(s) being improved, andthe type of cultivar used commercially (e.g., F1 hybrid cultivar,pureline cultivar). Popular selection methods include pedigreeselection, modified pedigree selection, mass selection, recurrentselection, backcrossing, or a combination thereof.

Pedigree selection is commonly used for the improvement ofself-pollinating crops. Two parents are crossed to produce an F₁population. An F₂ population is produced by selfing one or several F₁'s.Selection of the best individuals may begin in the F₂ population; then,beginning in the F₃ generation, the best individuals in the bestfamilies are selected. Replicative testing of families can begin in theFa generation to make selection of traits with low heritability moreeffective. At an advanced stage of inbreeding (e.g., F₆ or F₇), the bestlines are tested for potential release as new cultivars.

Mass and recurrent selections can be used to improve populations ofeither self- or cross-pollinating crops. A genetically variablepopulation of heterozygous individuals is either identified or createdby intercrossing several different parents. The best plants are selectedbased on individual superiority, outstanding progeny, or excellentcombining ability. The selected plants are intercrossed to produce a newpopulation, which is often subjected to additional cycles of selection.

Backcrossing is commonly used to transfer genes for highly heritabletraits into a desirable homozygous cultivar or inbred line. The term“backcrossing” refers to the repeated crossing of hybrid progeny back toone of the parental plants, referred to as the recurrent parent. Theplant that serves as the source of the transferred trait is called thedonor parent. After the initial cross, individuals possessing thetransferred trait are selected and repeatedly crossed to the recurrentparent. The resulting plant is expected to have the attributes of therecurrent parent along with the trait transferred from the donor parent.

Transformation Methods

As is noted above, the present invention provides plants and seeds ofrice cultivar UADA1701084 in which additional traits have beentransferred. While such traits may be selected for using traditionalbreeding methods, they may also be introduced as transgenes.“Transgenes” include both foreign genes and additional or modifiedversions of native genes. Plants can be genetically engineered to have awide variety of traits of agronomic interest including, withoutlimitation, male sterility, waxy starch, herbicide resistance,resistance for bacterial, fungal, or viral disease, insect resistance,male fertility, enhanced nutritional quality, industrial usage, yieldstability, and yield enhancement. Many examples of genes that confersuch traits have been described in the literature and are well known inthe art. For example, the transgene may confer resistance to anherbicide selected from the group consisting of: glyphosate,sulfonylurea, imidazolinone, dicamba, glufosinate, phenoxy proprionicacid, L-phosphinothricin, cyclohexone, cyclohexanedione, triazine,2,4-Dichlorophenoxyacetic acid, hydroxyphenyl-pyruvate dioxygenase(HPPD) inhibitors, and benzonitrile.

Transgenes are typically introduced in the form of an expression vector.As used herein, an “expression vector” is DNA comprising a geneoperatively linked to a regulatory element (e.g., a promoter). Theexpression vector may contain one or more such gene/regulatory elementcombinations. The expression vector may also include additionalsequences, such as a signal sequence or a tag, that modify the proteinproduced by the transgene. The vector may be a plasmid, and can be usedalone or in combination with other plasmids.

Expression vectors include at least one genetic marker operably linkedto a regulatory element (e.g., a promoter) that allows transformed cellscontaining the vector to be recovered by selection. In some embodiments,negative selection (i.e., inhibiting growth of cells that do not containthe selectable marker gene) it utilized. Negative selection markersinclude, for example, genes that result in detoxification of a chemicalagent (e.g., an antibiotic or an herbicide) and genes that result ininsensitivity to an inhibitor. Exemplary negative selection genesinclude neomycin phosphotransferase II (nptII), hygromycinphosphotransferase, gentamycin acetyl transferase, streptomycinphosphotransferase, and aminoglycoside-3′-adenyl transferase. In otherembodiments, positive selection (i.e., screening for the product encodedby a reporter gene) is utilized. Exemplary reporter genes includeβ-glucuronidase, β-galactosidase, luciferase, chloramphenicolacetyltransferase, and Green Fluorescent Protein (GFP).

Transgene expression is typically driven by operably linking thetransgene to a promoter within the expression vector. However, otherregulatory elements may also be used to drive expression, either aloneor in combination with a promoter. As used herein, a “promoter” is aregion of DNA upstream of a transcription start site that is involved inrecognition and binding of RNA polymerase for transcription initiation.Any class of promoter may be selected to drive the expression of atransgene. For example, the promoter may be “tissue-specific”, “celltype-specific”, “inducible”, or “constitutive”. Those of skill in theart know how to select a suitable promoter based the particularcircumstances and genetic engineering goals.

Methods for producing transgenic plants are well known in the art.General descriptions of plant expression vectors, reporter genes, andtransformation protocols can be found in Gruber, et al., “Vectors forPlant Transformation”, in Methods in Plant Molecular Biology &Biotechnology in Glich, et al., (Eds. pp. 89-119, CRC Press, 1993).General methods of culturing plant tissues are provided for example byMaki, et al., “Procedures for Introducing Foreign DNA into Plants” inMethods in Plant Molecular Biology & Biotechnology, Glich, et al., (Eds.pp. 67-88 CRC Press, 1993); and by Phillips, et al., “Cell-TissueCulture and In-Vitro Manipulation” in Corn & Corn Improvement, 3rdEdition; Sprague, et al., (Eds. pp. 345-387 American Society of AgronomyInc., 1988). Methods of introducing expression vectors into plant tissueinclude direct gene transfer methods, such as microprojectile-mediateddelivery, DNA injection, and electroporation, as well as the directinfection or co-cultivation of plant cells with Agrobacteriumtumefaciens, described for example by Horsch et al., Science, 227:1229(1985). Descriptions of Agrobacterium vector systems and methods forAgrobacterium-mediated gene transfer are provided by Gruber, et al.,supra.

REFERENCES

-   Moldenhauer, K. A. K., J. W. Gibbons, F. N. Lee, J. L.    Bernhardt, C. E. Wilson, R. D. Cartwright, M. M. Anders, R. J.    Norman, N. A. Slaton, M. M. Blocker, A. C. Tolbert, K. Taylor    and J. M. Bulloch. 2007. Registration of >Francis=rice. Crop Sci.    47:443-444-   Moldenhauer, K. A. K., J. W. Gibbons, F. N. Lee, J. L.    Bernhardt, C. E. Wilson, Jr., R. D. Cartwright, R. J. Norman, M. M.    Blocker, D. K. Ahrent, A. M. Stivers, V. A. Boyett, J. M Bulloch,    and E. Castaneda. 2010. >Roy J=, high yielding stiff-strawed,    long-grain rice variety. In R. J. Norman, and K. A. K. Moldenhauer    (eds.) Rice Research Studies 2009. University of Arkansas    Agricultural Experiment Station Research Series 581. pp. 53-59-   Webb, B. D., C. N. Bollich, H. L. Carnahan, K. A. Kuenzel.,    and K. S. McKenize. 1985. Utilization characteristics and qualities    of United States rice. p. 25-35. In: Rice grain quality and    marketing. IRRI, Manila, Philippines

DEPOSIT INFORMATION

A deposit of the University of Arkansas Division of Agriculture RiceResearch and Extension Center proprietary rice cultivar UADA1701084disclosed above and recited in the appended claims has been made withthe American Type Culture Collection (ATCC), 10801 University Boulevard,Manassas, Va. 20110. The date of deposit was Jan. 4, 2021. The depositof 2,500 seeds was taken from the same deposit maintained by theUniversity of Arkansas Division of Agriculture Rice Research andExtension Center (2900 Hwy 130 E., Stuttgart, Ark. 72160) since prior tothe filing date of this application. All restrictions will beirrevocably removed upon granting of a patent, and the deposit isintended to meet all of the requirements of 37 C.F.R. §§ 1.801-1.809.The ATCC Accession Number is PTA-126948. The deposit will be maintainedin the depository for a period of thirty years, or five years after thelast request, or for the enforceable life of the patent, whichever islonger, and will be replaced as necessary during that period.

What is claimed is:
 1. A rice seed of the cultivar ‘UADA1701084,’ arepresentative sample of seed of said cultivar having been depositedunder ATCC Accession No. PTA-126948.
 2. A rice plant, or a part thereof,produced by growing the seed of claim
 1. 3. A rice plant, or a partthereof, having all of the physiological and morphologicalcharacteristics of the rice plant of claim
 2. 4. Pollen or an ovule ofthe plant of claim
 2. 5. A method for producing rice plants, said methodcomprising planting a plurality of rice seeds as recited in claim 1under conditions favorable for the growth of rice plants.
 6. The methodof claim 5, further comprising the step of producing rice seed from theresulting rice plants.
 7. A rice seed produced by the method of claim 6.8. A tissue culture of regenerable cells or protoplasts produced fromthe rice plant of claim
 2. 9. The tissue culture of claim 8, whereinsaid cells or protoplasts are produced from a tissue selected from thegroup consisting of embryos, meristematic cells, pollen, leaves,anthers, roots, root tips, pistils, anthers, cotyledon, hypocotyl,panicles, flowers, seeds, and stems.
 10. A rice plant regenerated fromthe tissue culture of claim 8, said rice plant having all of themorphological and physiological characteristics of ‘UADA1701084’.
 11. Amethod for producing an F₁ hybrid rice plant, said method comprisingcrossing a first parent rice plant with a second parent rice plant,wherein the first parent rice plant or the second patent rice plant isthe rice plant of claim
 2. 12. The method of claim 11, furthercomprising the step of producing rice seed from the resulting riceplant.
 13. The method of claim 11, wherein the second parent rice plantis transgenic.
 14. A method comprising transforming the rice plant ofclaim 2 or cell thereof with a transgene, wherein the transgene confersat least one trait selected from the group consisting of: herbicideresistance; insect resistance; resistance to bacterial, fungal, or viraldisease; modified fatty acid metabolism; modified carbohydratemetabolism; and male sterility.
 15. A rice plant or cell thereofproduced by the method of claim
 14. 16. An herbicide resistant riceplant produced by the method of claim 14, wherein the gene confersresistance to a herbicide selected from the group consisting ofglyphosate, sulfonylurea, imidazolinone, dicamba, glufosinate, phenoxyproprionic acid, L-phosphinothricin, cyclohexone, cyclohexanedione,triazine, 2,4-Dichlorophenoxyacetic acid, hydroxyphenyl-pyruvatedioxygenase (HPPD) inhibitors and benzonitrile.
 17. A method ofintroducing a desired trait into rice cultivar ‘UADA1701084,’ saidmethod comprising the steps of: (a) crossing plants as recited in claim2 with plants of another rice line expressing the desired trait, toproduce progeny plants; (b) selecting progeny plants that express thedesired trait, to produce selected progeny plants; (c) crossing theselected progeny plants with plants from the ‘UADA1701084 parental lineto produce new progeny plants; (d) selecting new progeny plants thatexpress the desired trait; and (e) repeating steps (c) and (d) three ormore times in succession to produce selected higher generation backcrossprogeny plants that express the desired trait.
 18. The method of claim17, additionally comprising the step of planting a plurality of riceseed produced by selecting higher generation backcross progeny plantsunder conditions favorable for the growth of rice plants and optionallycomprising the step of producing rice seed from the resulting riceplants.